12454336625 has 16 divisors (see below), whose sum is σ = 15582225360. Its totient is φ = 9938332800.

The previous prime is 12454336603. The next prime is 12454336627. The reversal of 12454336625 is 52663345421.

It can be written as a sum of positive squares in 8 ways, for example, as 5553379441 + 6900957184 = 74521^2 + 83072^2 .

It is not a de Polignac number, because 12454336625 - 2¹² = 12454332529 is a prime.

It is a super-2 number, since 2×12454336625² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12454336627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75860 + ... + 175109.

It is an arithmetic number, because the mean of its divisors is an integer number (973889085).

Almost surely, 2^12454336625 is an apocalyptic number.

It is an amenable number.

12454336625 is a deficient number, since it is larger than the sum of its proper divisors (3127888735).

12454336625 is an equidigital number, since it uses as much as digits as its factorization.

12454336625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251381 (or 251371 counting only the distinct ones).

The product of its digits is 518400, while the sum is 41.

The spelling of 12454336625 in words is "twelve billion, four hundred fifty-four million, three hundred thirty-six thousand, six hundred twenty-five".